JP4638982B2 - Transfer printer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transfer printer, and in particular, mounts a supply shaft and a take-up shaft for an ink ribbon, and a transfer unit holding a print head is rotatably arranged with respect to a main body casing. The present invention relates to a transfer type printer.
[0002]
[Prior art]
Generally, as shown in FIGS. 3 and 4, the transfer unit 1 is configured by holding the supply roll shaft 3, the take-up roll shaft 4 and the print head 5 of the ink ribbon 2 on the arm 1a, respectively. 2. Description of the Related Art A thermal transfer printer in which an arm 1a is rotatably disposed on a main body casing 7 by a rotation shaft 6 is known.
[0003]
In this transfer type printer, as shown in FIG. 3, the transfer unit 1 is rotated upward about the rotation shaft 6 to open the loading work area of the ink ribbon 2. Next, the supply roll 2 a of the ink ribbon 2 is loaded on the supply roll shaft 3 of the transfer unit 1, and the take-up roll 2 b of the ink ribbon 2 is fitted on the take-up roll shaft 4.
[0004]
Next, in this state, the leading edge of the paper A wound in a roll shape is inserted into the main body housing 7 from the paper supply port 7 a and the leading edge is guided to the platen roller 8. Next, as shown in FIG. 4, the transfer unit 1 is rotated downward about the rotation shaft 6, and the ink ribbon 2 and the paper A are interposed between the print head 5 and the platen roller 8.
[0005]
In such a transfer printer, the ink of the ink ribbon 2 is transferred onto the paper A by the print head 5. The paper A is transferred in the direction of the paper discharge port 7 b of the main body housing 7 by the platen roller 8 that rotates in synchronization therewith. Further, the take-up roll 2b of the ink ribbon 2 is rotated by the rotation of the take-up roll shaft 4, whereby the ink ribbon 2 of the supply roll 2a is taken up by the take-up roll 2b.
[0006]
[Problems to be solved by the invention]
By the way, in such a transfer type printer, the arm 1a holds the supply roll shaft 3 and the take-up roll shaft 4 of the ink ribbon 2, and further supplies a motor 4a for driving the take-up roll shaft 4. Since the brake mechanism 3a for applying the back tension to the roll shaft 3 is disposed, the transfer unit 1 becomes large.
[0007]
Further, not only the labor for rotating the transfer unit 1 is increased, but also the rotation shaft 6, the supply roll shaft 3, and the take-up roll shaft 4 are densely packed, making it difficult to mount the ink ribbon 2. There was a problem.
[0008]
The present invention has been made in view of such circumstances, and is a transfer type capable of reducing the size of the transfer unit, facilitating the mounting operation of the ink ribbon, and rotating the transfer unit with a small operating force. An object is to provide a printer.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention mounts an ink ribbon supply roll shaft and a take-up roll shaft, and a transfer unit holding a print head is rotatable with respect to the main body housing. In the arranged transfer printer, the ink ribbon supply roll shaft is shared by the rotation shaft of the transfer unit.
[0010]
According to the present invention, since the supply roll of the ink ribbon is held on the rotating shaft of the transfer unit, no moment is generated by the supply roll. Therefore, not only the load when rotating the transfer unit is reduced and the operation force is reduced, but also the supply roll shaft of the ink ribbon is shared with the rotation shaft of the transfer unit. It is not necessary to secure a space for installing the supply roll shaft for supporting the supply roll of the ink ribbon, and the transfer unit can be reduced in size and the ink ribbon can be easily attached.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a transfer printer according to the present invention will be described in detail with reference to the accompanying drawings.
[0012]
1 and 2 conceptually show a transfer type printer according to the present invention.
[0013]
In this transfer type printer 10, a transfer unit 16 is configured by holding an arm 11 with a supply roll shaft 13, a take-up roll shaft 14, and a print head 15 of an ink ribbon 12.
[0014]
Further, a stepping motor 17 for driving the take-up roll shaft 14 is connected to the transfer unit 16 of the transfer type printer 10, and a brake mechanism 18 for applying friction to the supply roll shaft 13 is directly connected. ing.
[0015]
In the transfer printer 10, the arm 11 is rotatably held by the main body housing 19 by the supply roll shaft 13.
[0016]
Further, in the transfer type printer 10, the paper A discharged into the main body casing 19 from the platen roller 20 and the paper supply port 19a through the platen roller 20 to the paper discharge port 19b and the paper discharge port 19b. Each of the cutters 22 is disposed.
[0017]
In the transfer type printer 10 configured as described above, as shown in FIG. 1, the transfer unit 16 is rotated upward about the supply roll shaft (the rotation axis of the transfer unit 13) 13, and the ink ribbon Twelve loading work areas are opened. Next, the supply roll 12 a of the ink ribbon 12 is loaded on the supply roll shaft 13 of the transfer unit 16, and the take-up roll 12 b is fitted on the take-up roll shaft 14.
[0018]
Next, in this state, the leading end of the paper A wound in a roll shape is inserted into the main body housing 19 from the paper supply port 19 a and the leading end is guided to the platen roller 20. Next, as shown in FIG. 2, the transfer unit 16 is rotated downward about the supply roll shaft 13, and the ink ribbon 12 and the paper A are interposed between the print head 15 and the platen roller 20. .
[0019]
In such a transfer printer, the ink on the ink ribbon 12 is transferred onto the paper A by the print head 15. Then, the paper A is transferred by the platen roller 20 toward the paper discharge port 19b of the main body housing 19. In synchronization with this, the stepping motor 17 is driven, whereby the take-up roll 12b is rotated, and the ink ribbon 12 of the supply roll 12a is taken up by the take-up roll 12b. At that time, a back tension is applied to the winding roll shaft 14 by the brake mechanism 18.
[0020]
In the above embodiment, the transfer type printer is a printer that supplies the paper A from the outside of the main body housing 19, but the printer that stores the paper A inside the main body housing 19 is used. There may be.
[0021]
The transfer printer may be either a thermal printing method or a pressure sensitive printing method as long as it uses an ink ribbon.
[0022]
Further, it is preferable for the purpose of the present invention that a brake mechanism 18 or the like for applying a back tension to the supply roll shaft 13 is installed coaxially with the supply roll shaft 13. It may be attached to another position.
[0023]
【The invention's effect】
As described above, according to the transfer type printer according to the present invention, since the supply roll of the ink ribbon is held on the rotation shaft of the transfer unit, no moment is generated by the supply roll. Therefore, not only the load when rotating the transfer unit is reduced and the operation force is small, but also the supply roll of the ink ribbon is shared by the rotation shaft of the transfer unit, so the supply roll is placed on the arm. It is not necessary to secure a space for installing the supply roll shaft for supporting, and the transfer unit can be reduced in size, and the ink ribbon can be easily attached.
[Brief description of the drawings]
FIG. 1 shows a transfer type printer according to the present invention, and is a conceptual diagram showing a state in which a transfer unit is opened.
FIG. 2 is a conceptual diagram illustrating a transfer printer according to the present invention, in a state where a transfer unit is closed.
FIG. 3 is a conceptual diagram showing a state in which a transfer unit is closed, showing a conventional transfer printer.
FIG. 4 is a conceptual diagram showing a state where a transfer unit is opened, showing a conventional transfer printer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Transfer-type printer, 11 ... Arm, 12 ... Ink ribbon, 12a ... Supply roll, 12b ... Winding roll, 13 ... Supply roll axis (rotation axis of transfer unit), 14 ... Winding roll axis, 15 DESCRIPTION OF SYMBOLS ... Print head, 16 ... Transfer unit, 17 ... Stepping motor, 18 ... Brake mechanism, 19 ... Main body housing, 19a ... Paper supply port, 19b ... Paper discharge port, 20 ... Platen roller, 21 ... Paper guide, 22 ... Cutter , A ... paper

Claims (1)

In the transfer type printer in which a supply roll shaft and a take-up roll shaft are mounted on the ink ribbon, and a transfer unit configured to hold a print head is rotatably disposed with respect to the main body housing, the transfer unit A transfer-type printer characterized in that the ink ribbon supply roll shaft is shared with the rotation shaft.

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